Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb605252f889f6da…

MALICIOUS

PDF

71.3 KB Created: 2021-02-24 10:04:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: f27ecb0a4fbe4f80c56b23200d86080d SHA-1: 58d1cece67bbf3d1885807e03077524d5f3c4374 SHA-256: fb605252f889f6da422952f7eb164213a602112e50e3d185b7e3e39930d57ecd
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://crophysi.ru/wix?keyword=southside+hoagie+shop+lewistown+pa In PDF document text
    • https://jawemojope.weebly.com/uploads/1/3/4/3/134399256/wetosuw-mapatuda-nasazij.pdfIn PDF document text
    • https://nefabilaj.weebly.com/uploads/1/3/1/4/131438225/rezevuxewijinu.pdfIn PDF document text
    • https://xijeruwenuvu.weebly.com/uploads/1/3/4/0/134018409/xowugifodu.pdfIn PDF document text
    • https://zipebamaxotunev.weebly.com/uploads/1/3/2/8/132814247/464b2255d11387f.pdfIn PDF document text
    • http://fabikaj.iblogger.org/bofobimij.pdfIn PDF document text
    • http://topijakalez.22web.org/gaxosinixokobef.pdfIn PDF document text
    • http://sojekobab.22web.org/asbog_study_guide.pdfIn PDF document text
    • http://gelchlen.fun/zulebezovilamuxovuvip9l1up.pdfIn PDF document text
    • https://kazofinuso.weebly.com/uploads/1/3/4/3/134369681/bupasexame.pdfIn PDF document text
    • http://xexogafuko.22web.org/mokewedodizawakebexoporuz.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/sizadagazagaj/91482253968.pdfIn PDF document text
    • https://s3.amazonaws.com/widetunipet/farov.pdfIn PDF document text
    • http://vudatuvabejosix.epizy.com/letter_sheet_size_in_cm.pdfIn PDF document text
    • http://roduteberilexel.epizy.com/the_vampire_diaries_saddest_quotes.pdfIn PDF document text
    • https://s3.amazonaws.com/womirofop/59918420206.pdfIn PDF document text
    • http://waverotefiwob.epizy.com/xazakalejiwolawofaxom.pdfIn PDF document text
    • https://s3.amazonaws.com/tigovatolis/fekogunasufenezekapej.pdfIn PDF document text
    • https://s3.amazonaws.com/lawakux/72248929247.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000da49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA49 5320 bytes
SHA-256: 2fdbfef9fd56d3c660e2c755683e0bf31cee550db7d1e1c79b5bae03bd1b0210
font_01_sfnt_off0000ec71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC71 10280 bytes
SHA-256: 9bece3c805a78e21ea52d5aae5199500eb3afd72e1807275dea0fbb0f186c7b4